High-performance glass phosphor for white-light-emitting diodes via reduction of Si-Ce 3+ :YAG inter-diffusion

@article{Chen2014HighperformanceGP,
  title={High-performance glass phosphor for white-light-emitting diodes via reduction of Si-Ce 3+ :YAG inter-diffusion},
  author={Li‐Yin Chen and W. Cheng and Chun-Chin Tsai and Yi-Chung Huang and Yen-Sheng Lin},
  journal={Optical Materials Express},
  year={2014},
  volume={4},
  pages={121-128}
}
A novel Ce3+:YAG doped sodium glass (CeYDG) with low-melting temperature of 693°C and high internal quantum yield of 68% for white-light-emitting diodes (WLEDs) is demonstrated. The glass phosphor possesses glass transition temperatures of 578°C which exhibits a better thermal stability to overcome the thermal limitation of conventional Ce3+:YAG doped silicone due to low thermal stability of around 150°C. To the best of authors’ knowledge, this is the highest quantum yield yet reported for… Expand
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References

SHOWING 1-10 OF 15 REFERENCES
High Thermal Stability of Phosphor-Converted White Light-Emitting Diodes Employing Ce:YAG-Doped Glass
High thermal stability of phosphor-converted white light-emitting diodes (PC-WLEDs) using Ce:YAG-doped glass (CeYDG), instead of conventional Ce:YAG-doped silicone (CeYDS), as a PC layer is proposedExpand
Investigation of Ce:YAG Doping Effect on Thermal Aging for High-Power Phosphor-Converted White-Light-Emitting Diodes
In this paper, high-power phosphor-converted white-light-emitting diodes (PC-LEDs) with selected concentration and thickness of cerium-doped yttrium aluminum garnet (Ce:YAG) phosphor-doped siliconesExpand
Ultra-High Thermal-Stable Glass Phosphor Layer for Phosphor-Converted White Light-Emitting Diodes
A glass phosphor layer with ultra-high thermal stability appropriate for phosphor-converted white light-emitting diodes (PC-WLEDs) is demonstrated. The results showed PC-WLEDs utilizing the highExpand
YAG glass-ceramic phosphor for white LED (II): luminescence characteristics
Optical properties of the Ce:YAG glass-ceramic (GC) phosphor for the white LED were investigated. Concentration dependence of fluorescence intensity of Ce3+:5d→4f transition in the GC showed aExpand
YAG glass-ceramic phosphor for white LED (I): background and development
We have developed a Ce:YAG (Y3Al5O12) glass-ceramic phosphor for the white LED. The glass-ceramic phosphor was obtained by a heat treatment of a Ce-doped SiO2-Al2O3-Y2O3 mother glass between 1200°CExpand
Phosphor in glasses with Pb-free silicate glass powders as robust color-converting materials for white LED applications.
TLDR
Enhanced thermal quenching property of PiG compared to phosphor with conventional silicone resin suggests its prominent feasibility for high-power/high-brightness white LEDs. Expand
Lumen degradation and chromaticity shift in glass and silicone based high-power phosphor-converted white-emitting diodes under thermal tests
The lumen degradation and chromaticity shift in glass and silicone based high-power phosphor-converted white-emitting diodes (PC-WLEDs) under accelerated thermal tests at 150°C, 200°C, and 250°C areExpand
Fabrication of glasses of dispersed yellow oxynitride phosphor for white light-emitting diodes
Abstract Ca–α–SiAlON:Eu2+ is known to be a typical oxynitride phosphor for luminescent materials. We investigated the potential as white LEDs of various glasses into which Ca–α–SiAlON:Eu2+ phosphorExpand
Luminescence Characteristics of YAG Glass–Ceramic Phosphor for White LED
Luminescence characteristics of Ce:Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub> (YAG) glass-ceramic (GC) phosphor for a white LED were investigated. The GC phosphor was obtained by a heat treatment of aExpand
Development of High-Performance Optical Silicone for the Packaging of High-Power LEDs
Silicone materials with a relatively high-refractive index have been introduced for the encapsulation of high-power light-emitting diodes (LEDs), and LEDs with relatively short wavelengths. However,Expand
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